Northumbrian Old English 𝓮o and 𝓮a

[Germanic au > O E 𝓮̄a [æa]; 𝓮̄u > lo. In late Northumbrian texts the spellings ea and eo appear almost interchangeably for both diphthongs. In general these spellings are ambiguous and the most recent view has been that the confusion was merely graphic. Certain isolated textual forms, however, point to phonemic coalescence in an ǣ-diphthong, an interpretation supported by the evidence of modern North Country dialects.]